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  1: <?php
  2: 
  3: /**
  4:  * This file is part of the Nette Framework (http://nette.org)
  5:  *
  6:  * Copyright (c) 2004 David Grudl (http://davidgrudl.com)
  7:  *
  8:  * For the full copyright and license information, please view
  9:  * the file license.txt that was distributed with this source code.
 10:  */
 11: 
 12: namespace Nette\Diagnostics;
 13: 
 14: use Nette;
 15: 
 16: 
 17: /**
 18:  * Logger.
 19:  *
 20:  * @author     David Grudl
 21:  */
 22: class Logger extends Nette\Object
 23: {
 24:     const DEBUG = 'debug',
 25:         INFO = 'info',
 26:         WARNING = 'warning',
 27:         ERROR = 'error',
 28:         CRITICAL = 'critical';
 29: 
 30:     /** @var int interval for sending email is 2 days */
 31:     public static $emailSnooze = 172800;
 32: 
 33:     /** @var callable handler for sending emails */
 34:     public $mailer = array(__CLASS__, 'defaultMailer');
 35: 
 36:     /** @var string name of the directory where errors should be logged; FALSE means that logging is disabled */
 37:     public $directory;
 38: 
 39:     /** @var string email to sent error notifications */
 40:     public $email;
 41: 
 42: 
 43:     /**
 44:      * Logs message or exception to file and sends email notification.
 45:      * @param  string|array
 46:      * @param  int     one of constant INFO, WARNING, ERROR (sends email), CRITICAL (sends email)
 47:      * @return bool    was successful?
 48:      */
 49:     public function log($message, $priority = self::INFO)
 50:     {
 51:         if (!is_dir($this->directory)) {
 52:             throw new Nette\DirectoryNotFoundException("Directory '$this->directory' is not found or is not directory.");
 53:         }
 54: 
 55:         if (is_array($message)) {
 56:             $message = implode(' ', $message);
 57:         }
 58:         $res = error_log(trim($message) . PHP_EOL, 3, $this->directory . '/' . strtolower($priority) . '.log');
 59: 
 60:         if (($priority === self::ERROR || $priority === self::CRITICAL) && $this->email && $this->mailer
 61:             && @filemtime($this->directory . '/email-sent') + self::$emailSnooze < time() // @ - file may not exist
 62:             && @file_put_contents($this->directory . '/email-sent', 'sent') // @ - file may not be writable
 63:         ) {
 64:             Nette\Callback::create($this->mailer)->invoke($message, $this->email);
 65:         }
 66:         return $res;
 67:     }
 68: 
 69: 
 70:     /**
 71:      * Default mailer.
 72:      * @param  string
 73:      * @param  string
 74:      * @return void
 75:      */
 76:     public static function defaultMailer($message, $email)
 77:     {
 78:         $host = php_uname('n');
 79:         foreach (array('HTTP_HOST','SERVER_NAME', 'HOSTNAME') as $item) {
 80:             if (isset($_SERVER[$item])) {
 81:                 $host = $_SERVER[$item]; break;
 82:             }
 83:         }
 84: 
 85:         $parts = str_replace(
 86:             array("\r\n", "\n"),
 87:             array("\n", PHP_EOL),
 88:             array(
 89:                 'headers' => implode("\n", array(
 90:                     "From: noreply@$host",
 91:                     'X-Mailer: Nette Framework',
 92:                     'Content-Type: text/plain; charset=UTF-8',
 93:                     'Content-Transfer-Encoding: 8bit',
 94:                 )) . "\n",
 95:                 'subject' => "PHP: An error occurred on the server $host",
 96:                 'body' => "[" . @date('Y-m-d H:i:s') . "] $message", // @ - timezone may not be set
 97:             )
 98:         );
 99: 
100:         mail($email, $parts['subject'], $parts['body'], $parts['headers']);
101:     }
102: 
103: }
104: 
Nette Framework 2.0.11 API API documentation generated by ApiGen 2.8.0